Otrøya (sometimes called Otterøya or Otrøy) is the largest island in Molde Municipality in Møre og Romsdal county, Norway.

[1] The highest point on the island is the mountain Oppstadhornet at 737 metres (2,418 ft) above sea level.

The main settlement is the village of Midsund on the west end of the island.

The Midsund Bridge connects Otrøya to the island of Midøya to the west.

On the east end of the island, there is a ferry connection across the Julsundet strait to the village of Mordal in Molde Municipality.